New guy to all this

Not too much for intros really. I'm 22, finishing up my Bachelor's degree and working 30-35 hours a week at a stressful (but rewarding) job and not too active before, during, or after work or school. But it's now gotten to the point that things need to change. I used to be in-shape back in high school when I was active in baseball and my metabolism could take anything I threw at it. But now, I'm not active and I don't really watch what I've eat and I'm sitting at a weight I've never been at before in my life, sitting right around 215-220 when my target weight is 180 pounds.

I've never really exercised regularly before - I went through a couple stints a couple of years ago to keep myself in-shape but it only lasted for a couple of months. But now, I'm either sitting at work, sitting in school, or sitting at home, and I'm worried about my long-term health. I sustained a lower back injury my Sophomore year in high school and stopped playing baseball after that. Besides my back problem sticking with me the rest of my life, the pain is also caused by the amount of stress on my lower back because of my weak mid-section and excess fat I've gained over the past few months. I really want to get in-shape and maintain a healthy lifestyle so when I become a father years down the road, I can enjoy spending time with my kids, playing catch and carrying them on my shoulders and everything else that goes along with being a dad.

One last note - my fiancee is a long-time MFP user and I know lately I've influenced her eating habits in a negative way. I'm hoping by me being on her shows her that I'm serious about changing my eating habits and exercising and hopefully she and I can get back down to our goal weights.

Thanks for reading!